1802
Luffman, John, 1756-1846
1:230k
1862
SMITH, George M.D., of Pennsylvania
1882
Smith, J.L.
1:63k
1888
Vermeule, C. C. (Cornelius Clarkson), 1858-1950
1:63k
1902
Gannett, Henry; Wilson, H. M.; US Coast and Geodetic Survey; Geological Survey of New Jersey
1:63k
1777
Washington, George
1899
C&GS
1:80k
1947
Chester County Historical Society
1873
Hopkins, G.M.
1:253k
1848
Hassler, F. R.
1:80k